Carton lining device



Nov. 27, 1951 E. M. ROACH 2,576,697

I CARTON LINING DEVICE Filed May 17, 1945 l 2 SHEETSSHEET l Nov. 27,1951 E. M. ROACH CARTON LINING DEVICE .2 SHEETSSHEET 2 a 3 w 3% m i 2hnvlhnL F J 7 g 0% 1; a u w w 4 j.

Filed May 17, 1945 o a9 7 3 5/ A w 0 4 9 7 5 1/ ma? fl 7 7 N5 m 3 o H741 WC f u Patented Nov. 27, 1951 CARTON LINING DEVICE Earl M. Roach,Chicago, Ill., assignor to Arvey Corporation, Chicago, 111., acorporation of Illinois Application May 17, 1945, Serial No. 594,217

3 Claims.

This invention relates to a novel carton lining device.

More specifically, my invention relates to a device for facilitating theoperations of expanding and shaping an initially flat liner bag to adaptthe liner to enter and substantially conform to the interior surfaces ofa relatively rigid rectangular container.

It is a particular object of my invention to provide a former ormandrel-like device which may be readily operated by an inexperiencedperson, such as a housewife, for the home lining of cartons in, forexample, the packing of foods to be home frozen.

It is a further object of my invention to provide a device of the classdescribed which is collapsible as a whole, and which may be thuseconomically transported, and if desired sold packaged as a unit withother components, such as knocked-down cartons and fiat liner bags. Ifdesired, the package may further be adapted to provide a supporting basefor the shaping device.

Further objects relate to details of construction, arrangement of parts,economies of construction, and other advantages of my invention whichwill be apparent from a consideration of the following specification anddrawings, wherem:

Fig. 1 is a perspective view of one form of my device.

Fig. 2 is a front elevational view thereof in collapsed form, furthergraphically illustrating the manner of collapsing it, and with a linerbag drawn thereover.

Fig. 3 is a side elevation of the illustration of Fig. 2.

Fig. 4 is a fragmentary detail view, partly in section, illustrating amodified form of supporting base adapted from use in several forms ofthe device of this invention.

Fig. 5 is a fragmentary elevation of my device, with an expanded linerbag thereover, further graphically illustrating the manner of shapingthe liner.

Fig. 6 is a fragmentary elevation partly in section illustrating theinsertion of a shaped liner in a container by employment of a device ofthe present invention.

Fig. 7 is a perspective view illustrating a container lined inaccordance with the present invention.

Fig. 8 is a side elevational view of a modified form of the device ofthe present invention.

Fig. 9 is a plan View of the former device of Fig. 8.

Fig. 10 is a fragmentary front elevational view of the device of Fig. 8,further graphically illustrating the manual collapsing thereof and aliner bag engaged thereover.

Fig. 11 is a plan view of the collapsed former device of Fig. 10.

Figs. 12 and 13 are fragmentary details, the latter in section,illustrating the lower end portion of the device of Fig. l, and thesupplemental locking and expansion means in its supporting base.

Fig. 14 is a perspective view, with parts broken away, of a fiatflexible liner bag adapted to be expanded and shaped by means of thedevices of the present invention.

Fig. 15 is a section on line 15-45 of Fig. 14.

Fig. 16 is a side elevational view of another modified form of device ofthe present invention.

Fig. 1'7 is a side elevational view of the form of device of Fig. 16,viewed from a face thereof, and in collapsed form.

Fig. 18 is a side elevational view of the device of Fig. 16 in thecollapsed form of Fig. 17.

Fig. 19 is a fragmentary detail view of the lower end portion of theformer of Fig. 8.

Referring to the drawings, the form of my device as illustrated in Fig.1 comprises a hollow form expandible to rectangular section, composed ofa relatively rigid but flexible material, such as for example cardboard,and comprises a pair of opposed facing panels Iii-I0, having hinged toand between each of their opposed side edges the outwardly foldable andcollapsible side panels |l-I I, and to and between their upper ends, thecollapsible and outwardly foldable top panel I 2.

The panels I I are defined from the face panels I0 by means of scorelines |3-l3, and are each further formed with a medial score line I4 toadapt them to collapse and fold outwardly. The top panel I2 is likewisedefined from the facing panels ID by means of the score lines I5! 5, andis adapted to be collapsed and folded outwardly along its medial scoreline I6.

It may be understood that the score lines I3, [4, I5 or I 6 may beconventionally formed either by lines'of indentation or lines of partialseverance to form or permit hinges to remain at the indicated lines, andto permit directional folding thereat. In the alternative, each of thepanels I0 and the panels I I and I2 and their component portions may beseparately formed and joined for hinging and folding movement bysuitable connectingweb, strip or other hinge means.

This mandrel-like former device is preferably sion of the mandrel inexpanded form, and thusir by embracing engagement prevent it fromcollapsing at the lower end. To aid in maintaining the lower end of themandrel .thussupported and expanded, a pair of opposedifacess ofexpanded;

mandrel defined by the sides I i, may be provided with downwardlyopening slots .I9,.as shown. in.

Fig. 12, for reception of one, or the two transversely extendingupwardly opening slotte'djitabs 20, which form a component part of thesupporting based i.

. Forreception-and expansion of a normally: flat open mouthed liner bag2i, the uperportionof the former or mandrel is manually collapsed bygrasping the opposed faces is thereof adjacent their top edges so as toreduce the section thereof"* and tocol-la-pse itsfoldablepanel-portions, after which a liner bag'Zi may be'readily'drawnthereover: to :the'full extent of the liner bag illustratedxin Fig. 2.Thereafter, as illustrated in Fig. 5, by merely pressing down on thecollapsible top:panel-l2-, the sidefacing panels 50 are caused to beexpanded into substantially parallel relationship to each other, to'thus cause the mandrel to assume throughout a rectangular sect-icn'andto. transversely expand the bag to rectangular form; Thisexpansion maybe likewise accomplished .by. pressing inwardly against the opposedcollapsible side panels I ii 5. After this the ears-22 of the bag-may beknocked down, and a rectangular relatively rigid carton 23' drawnthereover. The expanded and shaped linerafter having-thus entered :andsubstantially conformed to the. interior surfaces'of the container:23,may by; frictional engagement be withdrawn therewith fromthe mandrel.

Although I have illustrated and described a supportingbase with-respecttov the'foregoing form, andalthough I-prefer the use of asupporting-:base, Imay dispense with such-use. In such instance'theentire mandrel may be manually collapsed,.a liner bag: drawn thereover,and the mandrel again expanded to square up the bag by grasping'itscollapsible sides to expand and fully space the facingpanels 19 fromeachother.

As a further alternatiVe I may employ a supporting base such as thatindicated at M ni-Fig. 4;-;having:a. stud' 25 of a rectangulartransverse cross-section conforming to that defined by the inner facesof an expanded mandrel, said stud being insertablewithin and therebengaging the lower end portion of:,an. expanded mandrel-or former devicegenerally indicated as 26, which mayxbesax mandrel suchasthat showninFig. l. or the modified formzshownwin Fig. 8. In like mannerthe'modifiedform.of-construction of Fig. 8;..which will-be hereinafterdescribed, may also be: used: without a supporting-base of any kind;However, as previously indicated, the use of a sup.- porting 'basein.all cases is preferred since the operation is facilitated thereby.

When. the employment of supporting, bases dispensedywith, in.thedescribed forms f.my,de!-" vice,:.the component: facing andZcollapsiblewa-ll's or panels. thereof may-be formed of .:materials ofrelatively greater: rigidity; than cardboardlsuch as, for example, sheetmetal, or relatively rigid plastic sheets, wood and the like. In suchforms of devices, separate hinges or hinge means may be employed insteadof score lines. Also in the alternative and although not illustrated,spring means may be employed within the confines of the-hollow mandrelor formenfon normally retaining it in expanded rectangular form.

The modified form of the device illustrated by Fig. 8, is essentiallythat of the device illustrated in Fig. l with the exception that afoldable top panelisnot employed. Thus, this form of mandrel'iorrformer: device is composed of a pair of opposedfacingnpanels 21--2'i,having hinged between their opposed side edges the collapsible andoutwardly. foldable panels 28-48, the panels 28' being each hinged tothe facing panels 2'! at the-.hingezlines 29 and being each mediallyoutwardly foldable and collapsible on a line 36.

The supporting base for this formof mandrel may suitably be a containerbox generally indi--.- cated as 3|, which may originally serve as apackagewfor. the supporting. mandrel, aplurality of liner bags 2! and.a-plurality of knockdowncontainers 23, for convenience in packing and toenable, ifdesired, the sale inunit formof cartons, liners therefor and amandrel for. shaping the liners'and lining the cartons therewithfor-home use.

One face of the container 31 is provided with an upwardly openingrectangular recess 32 conforming to the outer dimension of the expandedmandrel, so as to embrace and maintain the lower end .portion thereofin. supported vand expanded position- As partially. indicated,this'rectangular opening 32 may be formed by tabs 33 defined by slitsand score lines in a surface of the container 3|. To providesupplemental support and expansion maintenance means for the lower endportion of the mandrel, an additional tab 34provided with upwardlyOpening slots 35 may be struck up from the bottom of the carton 3 l. Thelower edgesof the opposed mandrel faces 2l may be formed with downwardlyopening slots- 36 for interlocking slotted engagement with the tab-.34.

In thisform. of construction, and in view of the absence of the foldabletop, which top in the form of Fig. 1 forms a stop for downward movementof the liner bag 2|, the form of mandrel in Fig; 8 is preferably formedin a length-such that it extends above the upper surface ofthesup-porting. base or container 3| a distance somewhat less than thelength of the liner bag 2!, so as to form a stop, as best illustrated inFig. 10. Here the mandrel is shown to be manually collapsed bygrasping-of the opposed faces 2?, bringing their upper-edge portionsinto substantial meeting "engagement for ease ofinsertion within theopen end of the liner bag 2 F After the bag-is inserted as indicated;theiacing panels 2? are releasedand-the opposedcollapsible: panels 28pressed inwardly and thus expanded so as to bring the facing panels-ZTinto substantially fully spaced parallel relationship to each other.After this the closed :end offthe linerbagmay be squaredup. againstthe'upper edges of the mandrel and-the"corners :knockeddown'as-illustrated in'Fig. 5, and acontainer drawn thereover as inFigs; Sand 7.

Figs. 16 to 18 illustrate a further modified iorm of i constructionwhich in operation isi substan tiallythat of :the. previouslydescribed'iforms; .but includesonly':a-..foldable.top'. Forrco'nvenience this form has an integral supporting base which also holdsthe lower end portions of the facing panels in spaced relationship.Thus, this form of mandrel or former comprises a pair of opposed facingpanels 31-31 having hinged to and between their upper edges theoutwardly foldable and collapsible panel 38, panel 38 being hinged tothe panels 31 at the hinge or score lines 3939, and is medially foldableand collapsible on its score line 40. Joined to and between the loweredges of the opposed facing panels 31 is the base panel 4 I.

In the alternative, and although not illustrated, it will be understoodthat in place of the supporting and joining base piece 4|, other basesupporting means may be employed or devised so as to maintain the loweredge portions of the panels 31 in fixed spaced apart relationship whenthe upper end portions thereof are flexed and the top 38 collapsed forreception of a liner bag such as a bag 2|. For expansion the top 38 ispressed down in substantially the same manner as that described withrespect to the form of Fig. 1.

As herein described and as previously indicated, it will be apparent tothose skilled in the art that the present invention is susceptible ofvarious modifications in detail without departing from the spiritthereof. I therefore do not wish the broader scope of my invention to berestricted except as limited by the following claims.

I claim as my invention:

1. A device for expanding and shaping an initially flat flexible linerbag to adapt the liner to enter and substantially conform to theinterior surfaces of a relatively rigid container of rectangular formcomprising a hollow rectangular former composed of relatively rigid butflexible material including a pair of rectangular facing panels inhinged engagement with a pair of outwardly collapsible side panels, anda supporting base formed with an upwardly open rectangular recess forreception of the lower end portion of said former and for therebyvertically supporting it.

2. A device for expanding and shaping an initially flat flexible linerbag to adapt the liner to enter and substantially conform to theinterior surfaces of a relatively rigid container of rectangular formcomprising a hollow rectangular former composed of relatively rigid butflexible material including a pair of rectangular facing panels inhinged engagement with a pair of outwardly collapsible side panels, anda supporting base formed with an upwardly open rectangular recess forreception of the lower end portion of said former and for maintaining itthereat in expanded transversely rectangular form, said supporting baseincluding supplemental expansion support means for extensiontransversely of and in engagement with the lower edge portions of a pairof opposed former faces.

3. A device for expanding and shaping an initially flat flexible linerbag to adapt the liner to enter and substantially conform to theinterior surfaces of a relatively rigid container of rectangularparallelepiped form, comprising a pair of opposed rectangular facingpanels and medially foldable and outwardly collapsible panel meanshinged edgewise to and between the facing panels at the opposed sideadges thereof, said device upon expansion of said panel means defining aparallelepiped having the edges of one end forming the top thereof in acommon plane and providing thereat a continuous rectangular abutmentedge, and upon collapse of said panel means said end providing anentrance wedge for said liner bag, and separate supporting base meansdefining a rigid rectangle adapted for relative embracing engagementwith the lower end portion of said device for normally maintaining it inexpanded position while permitting the top end portion to be manuallyurged to wedge-like collapsed position for insertion within the open endof a liner bag.

EARL M. ROACH.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,532,316 Kaufman Apr. 7, 19251,722,276 Couch July 30, 1929 1,853,192 Benke Apr. 12, 1932 2,210,302Petter Aug. 6, 1940 2,223,754 Waters Dec. 3, 1940 2,279,359 Waters Apr.14, 1942 2,297,946 Doering Oct. 6, 1942 2,337,199 Holy Dec. 21, 1943FOREIGN PATENTS Number Country Date 683,071 Germany Oct. 28, 1939

